Omega Concrete Countertop Sealer
About
Omega Concrete Countertop Sealer is a high-performance urethane system engineered specifically for concrete countertops and architectural concrete surfaces. Developed by Jeff Girard through The Concrete Countertop Institute, Omega was designed to eliminate the delays, application challenges, and performance failures commonly associated with traditional professional urethane sealers.
Its advanced formulation provides excellent resistance to stains, acids, abrasion, scratches, heat, and UV exposure while remaining water-based and low VOC. Unlike slower, humidity-dependent systems, Omega cures quickly and consistently, allowing contractors to seal countertops in a single work window with predictable results.
Omega produces a very low-sheen, natural finish with strong color enhancement and no plastic appearance. It is compatible with any concrete countertop mix design, suitable for wet and dry applications, and can be used indoors or outdoors. Once cured, the surface requires only standard non-abrasive cleaning and delivers durable, food-safe performance without callbacks.
WHAT DOES OMEGA CONCRETE COUNTERTOP SEALER LOOK LIKE?
- Natural Low-Sheen Finish | Preserves the authentic look of concrete without unwanted gloss
- Color-Popping Results | Brings depth and richness to natural concrete color and pigments
- No Plastic Look | Avoids film build and plastic-looking finishes
WHY IS OMEGA EASIER TO APPLY THAN OTHER PROFESSIONAL URETHANES?
- Seal in Hours, Not Days | Faster application than traditional professional urethanes
- Low-Risk Application | Reduces failures, wasted material, and costly rework
- Forgiving Flow Characteristics | Self-levels without streaks, bubbles, or roller marks
- Consistent Cure Regardless of Humidity | Delivers reliable results across changing jobsite conditions
- Works with Any Countertop Mix | Performance is not dependent on mix design or formulation
- Low VOC Formula | Safer application and indoor air quality during installation
- Ideal for Resealing Projects | Can be applied over properly prepared surfaces previously sealed with other systems
Calculator
WHAT IS THE SQUARE FOOTAGE OF YOUR PROJECT?
Specs
HOW MUCH DOES OMEGA COVER?
- Up to 170 sq ft per Kit | One 24 oz kit covers approximately 170 sq ft using up to 2 primer coats and 4 finish coats
- Cost-Effective Coverage | Averages approximately $0.76 per square foot at maximum application
How Surface Porosity Affects Coverage
Coverage and coat count will vary depending on the porosity and demands of the concrete surface. Less porous concrete or lower-demand applications, such as fireplace surrounds, may require as few as 1 primer coat and 2 finish coats. More porous surfaces may require additional applications, up to 2 primer coats and 4 finish coats, to achieve full sealing and long-term durability.
Always assess the porosity of the concrete before sealing to determine the appropriate number of coats. Proper evaluation and application ensure professional-grade results and extend the lifespan of the sealed surface.
HOW DOES OMEGA CONCRETE COUNTERTOP SEALER PERFORM?
- Ideal for Kitchens and Bathrooms | Engineered to handle daily use, spills, and cleaning in high-demand spaces
- Excellent Acid and Stain Resistance | Protects concrete from etching, discoloration, and common household acids
- Food Safe, Non-Toxic Cure | Complies with FDA food-contact guidelines for kitchen countertops
- Superior Abrasion and Scratch Resistance | Withstands wear from everyday use without dulling or failure
- Indoor or Outdoor Use | UV-stable performance that will not yellow or degrade
- Wet-Area Approved | Suitable for tubs, showers, sinks, and other regularly wet environments
CHEMICAL RESISTANCE
| HOUSEHOLD CHEMICALS | 24 HOUR EXPOSURE |
| Vegetable Oil | No Effect |
| Crushed Berries* | No Effect |
| Dish Soap (Dawn® Dish Detergent) | No Effect |
| Household Bleach (Sodium Hypochlorite 5%) | No Effect |
| Household Ammonia | No Effect |
| Tap Water | No Effect |
| Lemon Juice | No Effect |
| White Vinegar ( Acetic Acid 5%) | No Effect |
| Greased Lightning® | No Effect |
| Yellow Mustard | Temporary Surface Stain |
| Red Wine | No Effect |
| Coffee | No Effect |
| Tabasco® Sauce | Temporary Surface Stain |
| Isopropyl Alcohol (70%) | No Effect |
| INDUSTRIAL CHEMICALS | 24 HOUR EXPOSURE |
| Acetone | No Effect |
| 10% Hydrochloric Acid | No Effect |
| 10% Sodium Hydroxide | No Effect |
| Xylene | No Effect |
*Blueberries, Blackberries, Raspberries
DEFINITIONS
| TERM | DESCRIPTION | ACTION |
| No Effect | There is no change in appearance or performance | None needed |
| Temporary Surface Stain | The surface of the sealer appears discolored, but the sealer is undamaged, and underlying concrete is unaffected | Soak the discolored area with bleach |
PHYSICAL PERFORMANCE
| TEST | IMPACT |
| Abrasion Resistance | Taber abrasor CS-17 calibrase wheel with 1000 gram total load and 500 cycles = 23.0 mg loss |
| Impact Resistance | Gardner Impact, direct and reverse = 160 in lb (passed) |
| Adhesion | >300 psi @ elcometer (concrete failure, no delamination) over suitable primer |
| Water Resistance | Excellent, beads water |
| UV Stability | Excellent, suitable for outdoor use |
| Flexibility | No cracks on a 1/8" mandrel |
| Heat Resistance | Excellent, up to 500 degrees Fahrenheit (260 degrees Celsius) |
Instructions
HOW MUCH OMEGA NEEDS TO BE MIXED FOR MY PROJECT?
The Concrete Countertop Institute recommends two (2) primer coats and four (4) finish coats.
For easier and more accurate measuring, check out CCI's syringes (or the kits above) designed for mixing Part A and Part B.
Note: The coverage estimates below are approximate and will vary by your application method, concrete shape, and the surface porosity.
FOR EACH PRIMER COAT
The mixed Omega primer has a pot life of approximately 1 hour at room temperature, with shorter working times at higher temperatures. This provides sufficient time to apply both primer coats.
| MIX THESE | WAIT* | THEN ADD | |||
| Project Size | Part A | Part B | Induction Time | Water | Total |
| 100 sq ft | 20 ml | 10 ml | 5 Minutes | 210 ml | 240 ml |
| 150 sq ft | 30 ml | 15 ml | 5 Minutes | 315 ml | 360 ml |
| 200 sq ft | 40 ml | 20 ml | 5 Minutes | 420 ml | 480 ml |
| 250 sq ft | 50 ml | 25 ml | 5 Minutes | 525 ml | 600 ml |
| 300 sq ft | 60 ml | 30 ml | 5 Minutes | 630 ml | 720 ml |
| 350 sq ft | 70 ml | 35 ml | 5 Minutes | 735 ml | 840 ml |
*Mix thoroughly and allow the material to rest for a minimum of 5 minutes. This step is critical and must not be shortened.
FOR EACH FINISH COAT
| MIX THESE | WAIT* | THEN ADD | |||
| Project Size | Part A | Part B | Induction Time | Water | Total |
| 30 sq ft | 20 ml | 10 ml | 5 Minutes | 30 ml | 60 ml |
| 50 sq ft | 30 ml | 15 ml | 5 Minutes | 45 ml | 90 ml |
| 60 sq ft | 40 ml | 20 ml | 5 Minutes | 60 ml | 120 ml |
| 85 sq ft | 50 ml | 25 ml | 5 Minutes | 75 ml | 150 ml |
| 100 sq ft | 60 ml | 30 ml | 5 Minutes | 90 ml | 180 ml |
| 115 sq ft | 70 ml | 35 ml | 5 Minutes | 105 ml | 210 ml |
| 135 sq ft | 80 ml | 40 ml | 5 Minutes | 120 ml | 240 ml |
| 150 sq ft | 90 ml | 45 ml | 5 Minutes | 135 ml | 270 ml |
| 165 sq ft | 100 ml | 50 ml | 5 Minutes | 150 ml | 300 ml |
| 185 sq ft | 110 ml | 55 ml | 5 Minutes | 165 ml | 330 ml |
| 200 sq ft | 120 ml | 60 ml | 5 Minutes | 180 ml | 360 ml |
| 220 sq ft | 130 ml | 65 ml | 5 Minutes | 195 ml | 390 ml |
| 235 sq ft | 140 ml | 70 ml | 5 Minutes | 210 ml | 420 ml |
| 250 sq ft | 150 ml | 75 ml | 5 Minutes | 225 ml | 450 ml |
| 270 sq ft | 160 ml | 80 ml | 5 Minutes | 240 ml | 480 ml |
| 285 sq ft | 170 ml | 85 ml | 5 Minutes | 255 ml | 510 ml |
| 300 sq ft | 180 ml | 90 ml | 5 Minutes | 270 ml | 540 ml |
| 335 sq ft | 200 ml | 100 ml | 5 Minutes | 300 ml | 600 ml |
*Mix thoroughly and allow the material to rest for a minimum of 5 minutes. This step is critical and must not be shortened.
INSTRUCTION SUMMARY FOR OMEGA CONCRETE COUNTERTOP SEALER
Below is a very brief summary. Do not rely solely on this summary. It is imperative to watch all of the videos and read all of the written instructions.
1. Recommended Environmental Conditions for Applying Omega Concrete Sealer
To achieve the best results while applying a concrete sealer, it's essential to be mindful of specific environmental conditions. Here's what you need to consider:
- Air Movement: Apply the sealer in a location with minimal air movement. Drafts and breezy conditions can lead to uneven application, as the sealer may dry too quickly, resulting in undesirable streaks.
- Temperature: Avoid applying the sealer under direct sunlight or any form of radiant heat. Higher temperatures can cause the sealer to dry prematurely, making it difficult to achieve a smooth finish.
By managing these environmental factors, you can ensure a more even and professional finish for your concrete sealing project. Detailed information about the exact temperature and humidity, as well as considerations of dew point, air flow and dust control, are in the written instructions available from the full instructions page.
2. How to Prepare Your Concrete Surface for Sealing with Omega
Achieving a flawless finish on your concrete countertop begins with proper preparation. You will follow these steps to ensure your surface is ready for the sealer application:
- Cure your concrete for at least 2 days
- Make sure the concrete is microscopically rough by etching, wet sanding by hand, or machine honing to no more than 400 grit
- Make sure the concrete is clean and dry
- Ensure that the environment you will seal in is suitable
Click here for detailed instructions and video for the surface preparation process. By following these preparation steps, your concrete surface will be perfectly primed for the sealer, guaranteeing a smooth and professional finish.
3. Step-by-Step Guide to Applying Omega Concrete Countertop Sealer
Follow these basic steps to properly seal a concrete countertop and maintain its long-term appearance and performance. Note that you must refer to the full instructions for the details - DO NOT rely only on the steps below.
3a. Mixing
- Ratio is 2 parts by volume A with 1 part by volume B
- Mix and let rest for at least 5 minutes. This is CRITICAL. Do not let rest for shorter than 5 minutes.
- Dilute with water as needed depending on whether you are mixing Primer or Finish coats.
3b. Dilution
- Primer: 1 part urethane mixture plus 7 parts water by volume
- Finish Coat: 1 part urethane mixture plus 1 part water by volume (or 1.25 parts water in hot weather)
3c. Straining
- Strain diluted mixture through a paint strainer
3d. Apply the Prime Coats
- Apply a small amount and spread out rapidly, use spray bottle application method
- Backroll immediately with high quality foam rollers
- Maintain wet edge to prevent roller marks
- Wait 10-20 minutes between coats
- Apply at least 2 coats
- Wait 15+ minutes before applying Finish Coats
3e. Apply the Finish Coats
- Apply a small amount and spread out rapidly, use spray bottle application method
- Backroll immediately with high quality foam rollers
- Maintain wet edge to prevent roller marks
- Wait 10-20 minutes between coats
- Apply 2 to 4 coats depending upon desired protection
